Control of confused flour beetles using geranyl phenyl ethers

ABSTRACT

A method of controlling stored grain insects is described herein. Specifically, the method comprises adding an effective amount to the habitat of the stored grain insects, specifically, confused flour beetle, an effective amount of the following compound:

United States Patent Letchworth et al.

11] 3,810,989 May 14, 1974 4] CONTROL OF CONFUSED FLOUR BEETLES USING GERANYL PHENYL ETHERS [75] Inventors: Peter E. Letchworth, Mountain View; Julius J. Menn, Saratoga; Ferenc M. Pallos, Pleasant Hill, all of cam.

[73] Assignee: Staufle'r Chemical Company,

' Westport, Conn.

[22] Filed: Aug. 10, 1972 21 App]. No.: 279,589

Related us. Application Data [63] Continuation-impart of Ser. No. 90,067, Nov. 16,

1970, abandoned.

52 us. Cl. 424/278 [51] Int. Cl A01n 9/28 [58] Field of Search 424/278 [56] References Cited Schneiderman et aL, J. Insect PhysioL, Vol. ll, pp. l,64ll,649, 1965. 1

Borkduac, Insect Chemosterilant, pp. 61-63, lnterscience Publishers, Inc., N.Y., 1966.

Bowers et al., Science, Vol. 164, pp. 323-325, 1969.

Primary Examiner-Albert T. Meyers Assistant Examiner- Douglas W. Robinson Attorney, Agent, or Firm-Daniel C. Block [57] ABSTRACT l Claim, N0 Drawings 1 2 CONTROL OF CONFUSED FLOUR BEETLES CH3 usnvo GERANYL PHENYL ETHERS OH V, CZHB I Ulla I13 CROSS REFERENCE TO RELATED APPLICATION 5 CH This application is a continuation-in-part of application Ser. No. 90,067, filed Nov. 16, 1970, now abanl HE, doned, entitled Process Of Controlling Stored Grain v C2H.5 r

. Insects. i

DESCRIPTION OF THE INVENTION Among the several insecticide compositions, certain phenyl geranyl ethers and their epoxide derivatives have drawn considerable amount of attention. It'has been found that this class of compounds acts in a different manner on insects than presently used insecticides and exerts a disrupting influence upon the normal development of insects. Such compounds impede the 0 metamorphosis of the normal pupation of pest insects 2O C H H H and result in the formation of members of the treated species which are non-viable or sterile. This ultimately leads, indirectly at least, to the destruction of the pe Thus, the compound was tested on a representative o ulat'on.

p The zibove class of compounds aredescribed and stored product pest h confused flour. F d t t S N 25 Tribolium canfusm, to demonstrate the feasibility of c mme cope mg pa en app pest population management by means of hormonal 856340, flied P 1969i eniltled l Geranyl action. Twenty adult beetles were placed in a glass bot- Phefiyl Ethers Epoxldes And Use In tle containing 100 g. flour. The compound of the pres- Controlling Insects.This patent application is directed ent invention was thoroughly pre-mixed with the flour to novel chemical compounds for controlling insects 3 in concentrations ranging between 0.01 to 100 ppm. along with the method f application f the compounds Untreated flour was used as a control. Results of these in addition to method of preparing the end products f tests are reported inthe following table. Adult develop the invention. The subject matter ofthis patent applica ment of Trlbohum confusum was completely attested ti t d he i b refe ence when exposed to flour treated at 10ppm and higher. on mcorpora 6 re n y r Premature death of adults was observed even at the It has been found that one OfFhEQOmPOUndS lowest test concentration of 0.01 ppm. Survival of the SCTibEd above has umque Propertles the Control of original adults at the highest test concentration insects in stored products, n mely. conf e flour (1,000 p m) eliminated the possibility of direct toxicity tle. Thus, a phenyl geranyl' ether has been prepared in of the compound to the test insects.

TABLE 1 V W I v Effect of Compound on Tribolium confusum Populations Grown in Treated Flour Life Stages Present Concentration in Flour (ppm) 120 Days After Treatment 0 Iii I 100 [000 Adults: No. Alive 600 286 130 57 20 20 19 No. Dead 6 264 I20 93 0 0 1 Pupae' 4 1+ l-i-i- H-i l++. 0 Larvae -H-+ -H+ H+ Supernumerary Larvae 0 0 0 -H-i- +-H- -H- Adult-Pupal Intermediates 0 0 0 0 v 0 0 none I +=-few moderate +H- many accordance with the procedures as outlined Hi5? AS Can be Seen ffomthe above, the p d of the above-referred to patent application, which has the fol- P s mventlon has umque P P the Control of insects in stored products.

. What is claimed is: I

l. A method of arresting the adult development of b 1 CH3 confuse our eet es comprising contacting said con \/y\/l\ fused flour beetles with an effective amount for arrest- Csfl -L I lowing formula:

ing the adult developement of said beetles of a com- 1 pound of the formula: v

3 This compound has been found to have unique proper- C H H3 6 (L113 ties in the control of insects in stored products. The compound of this invention can be made by the following reaction: I g 

